4004
4004 is the first general purpose microprocessor by Intel
4004
6 general purpose registers.i.e., B,C,D,E,H,L
Microprocessor consists of different types of registers. They special purpose registers, general purpose registers, address registers, floating point registers and constant registers.
b/c the 8085 microprocessor is the first 8 bit microprocessor which Intel is produces in 1877 and this is the first general purpose 8 bit microprocessor. there was an 8 bit general purpose register before 8085 named as 8008 but this microprocessor is not functional 8 bit microprocessor
to initialise the chip in microprocessor....that is for which purpose we are going to use it......
Harvardvon NeumannGeneral Purpose ProcessorDigital Signal ProcessorFixed Point/IntegerFloating PointScientificBusinessBinaryDecimalFixed word lengthVariable word lengthetc. Depends on your definition of types.
The size of a general-purpose register in a microprocessor system is primarily determined by the architecture of the processor, particularly its instruction set architecture (ISA). Common architectures, such as x86 and ARM, define specific register sizes, typically ranging from 32 bits to 64 bits or even 128 bits in advanced systems. Additionally, the desired performance, data handling capacity, and compatibility with operating systems and applications also influence the choice of register size in a microprocessor design.
Microprocessor is a general purpose , easy to expand
KeyboardCaseMicrophoneSpeakerCall Progress microprocessor (conventional general purpose architecture)Signal Processing microprocessor (digital signal processor architecture)RAM and ROM for microprocessorsModemRF TransceiverAntennaGPS ReceiverGPS AntennaBatteryBattery charge controller/monitorLCD display(s) with backlightsSometimes a cameraSometimes a memory card socket
In this instance micro means very small in physical size
Special restart instruction used with interrupts